SamsungMZ-75E250B
OCZVTR150-25SAT3-240G
$246

Controller: Samsung Dual Core MGX. Memory: Samsung 40nm TLC V-NAND

 $246 

Controller: OCZ Barefoot 3 M00. Flash: Toshiba 19nm (1st gen) MLC NAND.

Real World Speed
Performance profile from 251,399 user samples
250,644 User Benchmarks
Best Bench: 116% 15GB free
Worst Bench: 67% 7GB free
Poor: 67% Great: 116%
SPEED RANK: 83rd / 885
755 User Benchmarks
Best Bench: 114% 183GB free
Worst Bench: 63% 9GB free
Poor: 63% Great: 114%
SPEED RANK: 100th / 885
Effective Speed
Effective SSD Speed
93.7 % +4% 90.5 %
Read
Avg. Sequential Read Speed
495 MB/s +1% 492 MB/s
Write
Avg. Sequential Write Speed
393 MB/s 455 MB/s Faster write speed.
+16%
4K Read
Avg. 4K Random Read Speed
37.5 MB/s Much faster random read.
+74%
21.6 MB/s
4K Write
Avg. 4K Random Write Speed
75.3 MB/s 85.3 MB/s Slightly faster random write.
+13%
Mixed
Avg. Sequential Mixed IO Speed
399 MB/s 471 MB/s Faster mixed IO speed.
+18%
4K Mixed
Avg. 4K Random Mixed IO Speed
32.4 MB/s Faster random mixed IO.
+23%
26.3 MB/s
Read
Peak Sequential Read Speed
517 MB/s 521 MB/s +1%
Write
Peak Sequential Write Speed
417 MB/s 502 MB/s Faster peak write speed.
+20%
4K Read
Peak 4K Random Read Speed
47.2 MB/s Much faster peak random read.
+75%
27 MB/s
4K Write
Peak 4K Random Write Speed
104 MB/s 132 MB/s Faster peak random write.
+27%
Mixed
Peak Sequential Mixed IO Speed
422 MB/s 509 MB/s Faster peak mixed IO speed.
+21%
4K Mixed
Peak 4K Random Mixed IO Speed
47.9 MB/s Faster peak random mixed IO.
+23%
39 MB/s
Market Share
Based on 5,667,811 SSDs tested.
Market Share
Market Share (trailing 30 days)
7.71 % Insanely higher market share.
+77,000%
0.01 %
Value
Value For Money
99.1 % Hugely better value.
+131%
42.9 %
User Rating
UBM User Rating
125 % Hugely more popular.
+105%
61 %
Price
Price (score)
$88 Much cheaper.
+64%
$246
Age
Newest
38 Months More recent.
+25%
51 Months
DQ Read
Peak 4K-64Thread Read Speed
371 MB/s +2% 365 MB/s
DQ Write
Peak 4K-64Thread Write Speed
282 MB/s 351 MB/s Faster peak deep queue write.
+24%
AS-SSD Total
AS-SSD Total Score
1,151 Pts 1,212 Pts Slightly stronger server IO.
+5%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
118 MB/s Faster peak deep queue mixed IO.
+18%
99.9 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
190 MB/s 198 MB/s +4%
ADQ Write
Avg. 4K-64Thread Write Speed
180 MB/s 217 MB/s Faster deep queue write.
+21%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
67 MB/s Slightly faster deep queue mixed IO.
+8%
61.8 MB/s
Capacity
Capacity
250GB 240GB
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The 250GB Samsung 850 Evo has a similar architecture to its hugely successful predecessor, the 840 Evo. Both drives are TLC based but the 850 uses 3D V-NAND as opposed to regular NAND. Both drives also feature a Turbowrite cache (TWC) which buffers up to 3GB of writes. The TWC enables high burst write speeds but when the cache exhausts write speeds drop to 300 MB/s. Comparing the 850 and 840 Evos shows that effective speed, has improved by 11% and the warranty has been extended from three to five years but prices are also up by 11%. The 850 Evo does put in superb benchmarks (second only to the 850 Pro) but these are only valid within the TWC. At current price levels the 850 Evo struggles to compete with the value leaders[Dec '14 SSDrivePro]

MORE DETAILS

Comparing the 150 to the original Vector is disappointing, the newer 150 actually offers marginally worse performance than its predecessor. A strange result but verified (at least partly) by figures on OCZ's own website: 100K 4K read IOPS for the Vector vs 90K 4K read IOPS for the 150. The newer 150 comes with a 5 year warranty which covers 50GB/day vs. the original Vectors 20GB/day but even this should be taken with a pinch of salt considering that the OCZ stock price is currently trading at around seven cents per share, an all time low. Despite the fact that new Vector 150 performs worse than its predecessor it's still a very competent performer and if prices drop, it has the potential to become a decent value proposition. In the meantime however there are far better deals available elsewhere.  [Dec '13 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) February 2018 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

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Group Test Results

  • Best user rated - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.
How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $430Samsung 850 Evo 250GB $88
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $125
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $185SanDisk Extreme 64GB $50
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $975SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $206SanDisk Extreme 16GB $18
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